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    2022: 7

  1. Mehrnoosh Shakarami, James Benson and Ravi Sandhu, Scenario-Driven Device-to-Device Access Control in Smart Home IoT. In 4th IEEE International Conference on Trust, Privacy and Security in Intelligent Systems, and Applications (TPS-ISA), Atlanta, GA, December 14-17 2022, pages 217-228. Presentation(pptx) (pdf)
    Google Scholar Search 1+
  2. Lopamudra Praharaj, Safwa Ameer, Maanak Gupta and Ravi Sandhu, Attributes Aware Relationship-Based Access Control for Smart IoT Systems (Winner of Best Paper Award). In Proceedings of the 8th IEEE International Conference on Collaboration and Internet Computing (CIC), Dec. 2022, pages 72-81. Presentation(pptx) (pdf)
    Google Scholar Search 1+
  3. Mohammad Nur Nobi, Ram Krishnan, Yufei Huang and Ravi Sandhu, Administration of Machine Learning Based Access Control. In Proceeding of the 27th European Symposium on Research in Computer Security (ESORICS), Copenhagen, Denmark, September 26-30, 2022, pages 189-210 Presentation(pptx) (pdf)
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  4. Safwa Ameer, Maanak Gupta, Smriti Bhatt and Ravi Sandhu, Towards Convergence of Zero Trust Principles and Score-Based Authorization for IoT Enabled Smart Systems. In Proceedings of the 27th ACM Symposium on Access Control Models and Technologies (SACMAT), Virtual Event, June 8-10, 2022, 10 pages. Presentation(pptx) (pdf)
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  5. Tanjila Mawla, Maanak Gupta and Ravi Sandhu, Activity Control: A Vision for "Active" Security Models for Smart Collaborative Systems. In Proceedings of the 27th ACM Symposium on Access Control Models and Technologies (SACMAT), Virtual Event, June 8-10, 2022, 10 pages. Presentation(pptx) (pdf)
    Google Scholar Search 1+
  6. Mehrnoosh Shakarami, James Benson and Ravi Sandhu, Blockchain-Based Administration of Access in Smart Home IoT. In Proceedings of the ACM Workshop on Secure and Trustworthy Cyber-Physical Systems (SAT-CPS), April 27, 2022, Baltimore, MD, pages 57-66. Presentation(pptx) (pdf)
    Google Scholar Search 1+
  7. Mohammad Nobi, Ram Krishnan, Yufei Huang, Mehrnoosh Shakarami and Ravi Sandhu, Toward Deep Learning Based Access Control. In Proceedings of the 12th ACM Conference on Data and Application Security and Privacy (CODASPY), April 25-27, 2022, Hanover, MD, pages 10. Presentation(pptx) (pdf)
    Google Scholar Search 10+

    8. 2021: 9

  8. Glen Cathey, James Benson, Maanak Gupta and Ravi Sandhu, Edge Centric Secure Data Sharing with Digital Twins in Smart Ecosystems. In Proceedings Third IEEE International Conference on Trust, Privacy and Security in Intelligent Systems and Applications (TPS-ISA), Virtual Event, Dec. 13-15, 2021, pages 70-79. Presentation(pptx) (pdf)
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  9. John Heaps, Ram Krishnan, Yufei Huang, Jianwei Niu and Ravi Sandhu, Access Control Policy Generation from User Stories Using Machine Learning. In Proc. 33rd Annual IFIP WG 11.3 Working Conference on Data and Applications Security and Privacy (DBSec), Virtual Event, July 19-20, 2021, 18 pages. Presentation(pdf)
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  10. Shuvra Chakraborty and Ravi Sandhu, On Feasibility of Attribute-Aware Relationship-Based Access Control Policy Mining. In Proc. 33rd Annual IFIP WG 11.3 Working Conference on Data and Applications Security and Privacy (DBSec), Virtual Event, July 19-20, 2021, 12 pages. Presentation(pptx) (pdf)
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  11. Na Shi, Bo Tang, Ravi Sandhu and Qi Li, DUCE: Distributed Usage Control Enforcement for Private Data Sharing in Internet of Things. In Proc. 33rd Annual IFIP WG 11.3 Working Conference on Data and Applications Security and Privacy (DBSec), Virtual Event, July 19-20, 2021, 12 pages. Presentation(pptx) (pdf)
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  12. Maanak Gupta and Ravi Sandhu, Towards Activity-Centric Access Control for Smart Collaborative Ecosystems. In Proceedings of the 26th ACM Symposium on Access Control Models and Technologies (SACMAT), Virtual Event, June 16-18, 2021, 10 pages. Presentation(pptx) (pdf)
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  13. Jingwen Fan, Yi Hey, Bo Tang, Qi Li and Ravi Sandhu, Ruledger: Ensuring Execution Integrity in Trigger-Action IoT Platforms. In Proceedings of the IEEE International Conference on Computer Communications (INFOCOM), May 10-13, 2021, Virtual Event, 10 pages. Presentation(pptx) (pdf)
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  14. Shuvra Chakraborty and Ravi Sandhu, Formal Analysis of ReBAC Policy Mining Feasibility. In Proceedings of the 11th ACM Conference on Data and Application Security and Privacy (CODASPY), April 26-28, 2021, Virtual Event, 11 pages. Presentation(pptx) (pdf)
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  15. Safwa Ameer and Ravi Sandhu, The HABAC Model for Smart Home IoT and Comparison to EGRBAC. In Proceedings of the ACM Workshop on Secure and Trustworthy Cyber-Physical Systems (SAT-CPS), April 28, 2021, Virtual Event, 10 pages. Presentation(pptx) (pdf)
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  16. Mehrnoosh Shakarami and Ravi Sandhu, Role-Based Administration of Role-Based Smart Home IoT. In Proceedings of the ACM Workshop on Secure and Trustworthy Cyber-Physical Systems (SAT-CPS), April 28, 2021, Virtual Event, 10 pages. Presentation(pptx) (pdf)
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    17. 2020: 7

  17. Smriti Bhatt and Ravi Sandhu, Convergent Access Control to Enable Secure Smart Communities. In Proceedings of 2nd IEEE International Conference on Trust, Privacy and Security in Intelligent Systems, and Applications (TPS), Virtual Event, December 1-3, 2020, 9 pages. Presentation(pptx) (pdf)
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  18. Abdullah Al-Alaj, Ravi Sandhu and Ram Krishnan, A Model for the Administration of Access Control in Software Defined Networking using Custom Permissions. In Proceedings of 2nd IEEE International Conference on Trust, Privacy and Security in Intelligent Systems, and Applications (TPS), Virtual Event, December 1-3, 2020, 10 pages. Presentation(pptx) (pdf)
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  19. Abdullah Al-Alaj, Ram Krishnan and Ravi Sandhu, ParaSDN: An Access Control Model for SDN Applications based on Parameterized Roles and Permissions. In Proceedings of 6th IEEE International Conference on Collaboration and Internet Computing (CIC), Virtual Event, December 1-3, 2020, 10 pages. Presentation(pptx) (pdf)
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  20. Sina Sontowski, Maanak Gupta, Sai Chukkapalli, Mahmoud Abdelsalam, Sudip Mittal, Anupam Joshi and Ravi Sandhu, Cyber Attacks on Smart Farming Infrastructure. In Proceedings of 6th IEEE International Conference on Collaboration and Internet Computing (CIC), Virtual Event, December 1-3, 2020, 10 pages. Presentation(pptx) (pdf)
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  21. Naiwei Liu, Meng Yu, Wanyu Zang and Ravi Sandhu, On the Cost-Effectiveness of TrustZone Defense on ARM Platform. In Proceedings of 21st World Conference on Information Security Applications (WISA), Virtual Event, August 26-28, 2020, 12 pages. Presentation(pptx) (pdf)
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  22. Safwa Ameer, James Benson and Ravi Sandhu, The EGRBAC Model for Smart Home IoT. In Proceedings of the 21st IEEE Conference on Information Reuse and Integration (IRI), Virtual Event, August 11-13, 2020, 8 pages. Presentation(pptx) (pdf) (mp4)
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  23. Smriti Bhatt and Ravi Sandhu, ABAC-CC: Attribute-Based Access Control and Communication Control for Internet of Things. In Proceedings of the 25th ACM Symposium on Access Control Models and Technologies (SACMAT), Virtual Event, June 10-12, 2020, pages 203-212. Presentation(pptx) (pdf)
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    24. 2019: 10

  24. Mehrnoosh Shakarami and Ravi Sandhu, Safety and Consistency of Mutable Attributes Using Quotas: A Formal Analysis. In Proceedings of the 1st IEEE International Conference on Trust, Privacy and Security in Intelligent Systems and Applications (TPS-ISA), Los Angeles, California, December 12-14, 2019, 9 pages. Presentation(pptx) (pdf)
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  25. Shuvra Chakraborty, Ravi Sandhu and Ram Krishnan, On the Feasibility of RBAC to ABAC Policy Mining: A Formal Analysis. In Proceedings of the 8th International Conference on Secure Knowledge Management in Artificial Intelligence Era (SKM), Goa, India, December 21-22, 2019, 17 pages. Presentation(pptx) (pdf)
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  26. Abdullah Al-Alaj, Ram Krishnan and Ravi Sandhu, SDN-RBAC: An Access Control Model for SDN Controller Applications. In Proceedings of the 4th International Conference on Computing, Communications and Security (ICCCS), Rome, Italy, October 10-12, 2019, 8 pages. Presentation(pptx) (pdf)
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  27. Shuvra Chakraborty, Ravi Sandhu and Ram Krishnan, On the Feasibility of Attribute-Based Access Control Policy Mining. In Proceedings of the 20th IEEE Conference on Information Reuse and Integration (IRI), Los Angeles, California, July 30-August 1, 2019, 8 pages. Presentation(pptx) (pdf)
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  28. Mehrnoosh Shakarami and Ravi Sandhu, Refresh Instead of Revoke Enhances Safety and Availability: A Formal Analysis. In Proceedings 31st Annual IFIP WG 11.3 Working Conference on Data and Applications Security and Privacy (DBSec), Charleston, SC, July 15-17, 2019. Presentation(pptx) (pdf)
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  29. Mahmoud Abdelsalam, Ram Krishnan and Ravi Sandhu, Online Malware Detection in Cloud Auto-Scaling Systems Using Shallow Convolutional Neural Networks. In Proceedings 31st Annual IFIP WG 11.3 Working Conference on Data and Applications Security and Privacy (DBSec), Charleston, SC, July 15-17, 2019. Presentation(pptx) (pdf)
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  30. Mehrnoosh Shakarami and Ravi Sandhu, Safety and Consistency of Subject Attributes for Attribute-Based Pre-Authorization Systems. In Proceedings National Cyber Summit (NCS), Huntsville, Alabama, June 4-6, 2019. Presentation(pptx) (pdf)
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  31. Bo Tang, Hongjuan Kang, Jingwen Fan, Qi Li and Ravi Sandhu, IoT Passport: A Blockchain-Based Trust Framework for Collaborative Internet-of-Things. In Proceedings of the 24th ACM Symposium on Access Control Models and Technologies (SACMAT), Toronto, Canada, June 4-6, 2019. Presentation(pptx) (pdf)
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  32. Maanak Gupta, James Benson, Farhan Patwa and Ravi Sandhu, Dynamic Groups and Attribute-Based Access Control for Next-Generation Smart Cars. In Proceedings of the 9th ACM Conference on Data and Application Security and Privacy (CODASPY), March 25-27, 2019, Richardson, TX, pages 61-72. Presentation(pptx) (pdf)
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  33. Abdullah Al-Alaj, Ravi Sandhu and Ram Krishnan, A Formal Access Control Model for SE-Floodlight Controller. In Proceedings of the ACM International Workshop on Security in Software Defined Networks & Network Function Virtualization (SDN-NFVSecurity), March 25-27, 2019, Richardson, TX, 6 pages. Presentation(pptx) (pdf)
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    34. 2018: 4

  34. Mahmoud Abdelsalam, Ram Krishnan, Yufei Huang and Ravi Sandhu, Malware Detection in Cloud Infrastructures using Convolutional Neural Networks. In Proceedings 11th IEEE International Conference on Cloud Computing (CLOUD), San Francisco, CA, July 2-7, 2018, 8 pages. Presentation(pdf)
    Google Scholar Search 25+
  35. Maanak Gupta and Ravi Sandhu, Authorization Framework for Secure Cloud Assisted Connected Cars and Vehicular Internet of Things. In Proceedings of the 23rd ACM Symposium on Access Control Models and Technologies (SACMAT), Indianapolis, Indiana, June 13-15, 2018, 12 pages. Presentation(pptx) (pdf)
    Google Scholar Search 25+
  36. Asma Alshehri, James Benson, Farhan Patwa and Ravi Sandhu, Access Control Model for Virtual Objects (Shadows) Communication for AWS Internet of Things. In Proceedings of the 8th ACM Conference on Data and Application Security and Privacy (CODASPY), March 19-21, 2018, Tempe, Arizona. Presentation(pptx) (pdf)
    Google Scholar Search 1+
  37. Maanak Gupta, Farhan Patwa and Ravi Sandhu, An Attribute-Based Access Control Model for Secure Big Data Processing in Hadoop Ecosystem. In Proceedings of the 3rd ACM Workshop on Attribute-Based Access Control (ABAC), March 19-21, 2018, Tempe, Arizona. Presentation(pptx) (pdf)
    Google Scholar Search 30+

    38. 2017: 10

  38. Smriti Bhatt, Farhan Patwa and Ravi Sandhu, An Access Control Framework for Cloud-Enabled Wearable Internet of Things. In Proceedings of the 3rd IEEE International Conference on Collaboration and Internet Computing (CIC), San Jose, CA, October 15-17, 2017, 11 pages. Presentation(pptx) (pdf)
    Google Scholar Search 30+
  39. Tahmina Ahmed and Ravi Sandhu, Safety of ABACα is Decidable. In Proceedings of the 11th International Conference on Network and System Security (NSS), Helsinki, Finland, August 21-23, 2017, 15 pages. Presentation(pptx) (pdf)
    Google Scholar Search 5+
  40. Smriti Bhatt, Farhan Patwa and Ravi Sandhu, Access Control Model for AWS Internet of Things. In Proceedings of the 11th International Conference on Network and System Security (NSS), Helsinki, Finland, August 21-23, 2017, 15 pages. Presentation(pptx) (pdf)
    Google Scholar Search 30+
  41. Asma Alshehri and Ravi Sandhu, Access Control Models for Virtual Object Communication in Cloud-Enabled IoT In Proceedings of the 18th IEEE Conference on Information Reuse and Integration (IRI), San Diego, California, August 4-7, 2017, 10 pages. Presentation(pptx) (pdf)
    Google Scholar Search 30+
  42. Maanak Gupta, Farhan Patwa and Ravi Sandhu, Object-Tagged RBAC Model for the Hadoop Ecosystem. In Proceedings 31st Annual IFIP WG 11.3 Working Conference on Data and Applications Security and Privacy (DBSec 2017), Philadelphia, Pennsylvania, July 19-21, 2017, 18 pages. Presentation(pptx) (pdf)
    Google Scholar Search 20+
  43. Mahmoud Abdelsalam, Ram Krishnan and Ravi Sandhu, Clustering-Based IaaS Cloud Monitoring. In Proceedings 10th IEEE International Conference on Cloud Computing (CLOUD), Honolulu, Hawaii, June 25-30, 2017, 8 pages. Presentation(pptx) (pdf)
    Google Scholar Search 10+
  44. Maanak Gupta, Farhan Patwa, James Benson and Ravi Sandhu, Multi-Layer Authorization Framework for a Representative Hadoop Ecosystem Deployment. In Proceedings of the 22nd ACM Symposium on Access Control Models and Technologies (SACMAT), Indianapolis, Indiana, June 21-23, 2017, pages 183-190. Presentation(pptx) (pdf)
    Google Scholar Search 20+
  45. Tahmina Ahmed, Ravi Sandhu and Jaehong Park, Classifying and Comparing Attribute-Based and Relationship-Based Access Control. In Proceedings of the 7th ACM Conference on Data and Application Security and Privacy (CODASPY), March 22-24, 2017, Scottsdale, Arizona. Presentation(pptx) (pdf)
    Google Scholar Search 10+
  46. Smriti Bhatt, Farhan Patwa and Ravi Sandhu, ABAC with Group Attributes and Attribute Hierarchies Utilizing the Policy Machine. In Proceedings of the 2nd ACM Workshop on Attribute-Based Access Control (ABAC), March 24, 2017, Scottsdale, Arizona, 12 pages. Presentation(pptx) (pdf)
    Google Scholar Search 25+
  47. Prosunjit Biswas, Ravi Sandhu and Ram Krishnan, Attribute Transformation for Attribute-Based Access Control. In Proceedings of the 2nd ACM Workshop on Attribute-Based Access Control (ABAC), March 24, 2017, Scottsdale, Arizona, 8 pages. Presentation(ppt) (pdf)
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    48. 2016: 12

  48. Smriti Bhatt, Farhan Patwa and Ravi Sandhu, An Attribute-Based Access Control Extension for OpenStack and its Enforcement Utilizing the Policy Machine. In Proceedings of the 2nd IEEE International Conference on Collaboration and Internet Computing (CIC), Pittsburgh, PA, November 1-3, 2016, 9 pages. Presentation(pptx) (pdf)
    Google Scholar Search 20+
  49. Asma Alshehri and Ravi Sandhu, Access Control Models for Cloud-Enabled Internet of Things: A Proposed Architecture and Research Agenda. In Proceedings of the 2nd IEEE International Conference on Collaboration and Internet Computing (CIC), Pittsburgh, PA, November 1-3, 2016, 9 pages. Presentation(pptx) (pdf)
    Google Scholar Search 40+
  50. Maanak Gupta and Ravi Sandhu, The GURAG Administrative Model for User and Group Attribute Assignment. In Proceedings of the 10th International Conference on Network and System Security (NSS), Taipei, Taiwan, September 28-30, 2016, 15 pages. Presentation(pptx) (pdf)
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  51. Prosunjit Biswas, Ravi Sandhu and Ram Krishnan, An Attribute-Based Protection Model for JSON Documents. In Proceedings of the 10th International Conference on Network and System Security (NSS), Taipei, Taiwan, September 28-30, 2016, 16 pages. Presentation(ppt) (pdf)
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  52. Asma Alshehri and Ravi Sandhu, On the Relationship between Finite Domain ABAM and PreUCONA. In Proceedings of the 10th International Conference on Network and System Security (NSS), Taipei, Taiwan, September 28-30, 2016, 14 pages. Presentation(pptx) (pdf)
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  53. Prosunjit Biswas, Ravi Sandhu and Ram Krishnan, Uni-ARBAC: A Unified Administrative Model for Role-Based Access Control. In Proceedings 19th Information Security Conference, (ISC 2016), Honolulu, Hawaii, September 7-9, 2016, 14 pages. Presentation(ppt) (pdf)
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  54. Tahmina Ahmed, Farhan Patwa and Ravi Sandhu, Object-to-Object Relationship-Based Access Control: Model and Multi-Cloud Demonstration. In Proceedings of the 17th IEEE Conference on Information Reuse and Integration (IRI), Pittsburgh, Pennsylvania, July 28-30, 2016, 8 pages. Presentation(pptx) (pdf)
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  55. Navid Pustchi and Ravi Sandhu, Role-Centric Circle of Trust in Multi-Tenant Cloud IaaS. In Proceedings 30th Annual IFIP WG 11.3 Working Conference on Data and Applications Security and Privacy (DBSec 2016), Trento, Italy, July 18-21, 2016, 16 pages. Presentation(pptx) (pdf)
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  56. Prosunjit Biswas, Ravi Sandhu and Ram Krishnan, A Comparison of Logical Formula and Enumerated Authorization Policy ABAC Models (with addendum). In Proceedings 30th Annual IFIP WG 11.3 Working Conference on Data and Applications Security and Privacy (DBSec 2016), Trento, Italy, July 18-21, 2016, 8 pages. Presentation(pptx) (pdf)
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  57. Yuan Cheng, Khalid Bijon and Ravi Sandhu, Extended ReBAC Administrative Models with Cascading Revocation and Provenance Support. In Proc. 21st ACM Symposium on Access Control Models and Technologies (SACMAT), Shanghai, China, June 6-8, 2016, 10 pages. Presentation(pptx) (pdf)
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  58. Yun Zhang, Farhan Patwa and Ravi Sandhu, Community-Based Secure Information and Resource Sharing in Azure Cloud IaaS. In Proceedings of the 4th ACM Workshop on Security in Cloud Computing (SCC), May 30, 2016, Xi'an, China, 8 pages. Presentation(pdf)
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  59. Prosunjit Biswas, Ravi Sandhu and Ram Krishnan, Label-Based Access Control: An ABAC Model with Enumerated Authorization Policy. In Proceedings of the 1st ACM Workshop on Attribute-Based Access Control (ABAC), March 11, 2016, New Orleans, Louisiana, 12 pages. Presentation(pptx) (pdf)
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    60. 2015: 6

  60. Navid Pustchi and Ravi Sandhu, MT-ABAC: A Multi-Tenant Attribute-Based Access Control Model with Tenant Trust. In Proceedings of the 9th International Conference on Network and System Security (NSS), New York, New York, November 3-5, 2015, 14 pages. Presentation(pptx) (pdf)
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  61. Yun Zhang, Farhan Patwa and Ravi Sandhu, Community-Based Secure Information and Resource Sharing in AWS Public Cloud. In Proceedings of the 1st IEEE International Conference on Collaboration and Internet Computing (CIC), Hangzhou, China, October 27-30, 2015, 8 pages. Presentation(pdf)
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  62. Yun Zhang, Farhan Patwa, Ravi Sandhu and Bo Tang, Hierarchical Secure Information and Resource Sharing in OpenStack Community Cloud. In Proceedings 16th IEEE Conference on Information Reuse and Integration (IRI), San Francisco, California, August 13-15, 2015, 8 pages. Presentation(pdf)
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  63. Khalid Bijon, Ram Krishnan and Ravi Sandhu, Mitigating Multi-Tenancy Risks in IaaS Cloud through Constraints-Driven Virtual Resource Scheduling. In Proc. 20th ACM Symposium on Access Control Models and Technologies (SACMAT), Vienna, Austria, June 1-3, 2015, pages 63-74. Presentation(pptx) (pdf)
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  64. Navid Pustchi, Ram Krishnan and Ravi Sandhu, Authorization Federation in IaaS Multi Cloud. In Proceedings of the 3rd ACM Workshop on Security in Cloud Computing (SCC), April 14, 2015, Singapore, 9 pages. Presentation(pptx) (pdf)
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  65. Khalid Bijon, Ram Krishnan and Ravi Sandhu, Virtual Resource Orchestration Constraints in Cloud Infrastructure as a Service. In Proceedings of the 5th ACM Conference on Data and Application Security and Privacy (CODASPY), March 2-4, 2015, San Antonio, Texas, pages 183-194. Presentation(ppt) (pdf)
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    66. 2014: 7

  66. Yun Zhang, Ram Krishnan and Ravi Sandhu, Secure Information and Resource Sharing in Cloud Infrastructure as a Service. In Proceedings of ACM Workshop on Information Sharing and Collaborative Security (WISCS 2014), November 3, 2014, Scottsdale, AZ. Presentation(pptx) (pdf)
    Google Scholar Search 10+
  67. Xin Jin, Ram Krishnan and Ravi Sandhu, Role and Attribute Based Collaborative Administration of Intra-Tenant Cloud IaaS. In Proceedings 10th IEEE International Conference on Collaborative Computing: Networking, Applications and Worksharing (CollaborateCom), Miami, Florida, October 22-25, 2014, 14 pages. Presentation(pptx) (pdf)
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  68. Dang Nguyen, Jaehong Park and Ravi Sandhu, Adopting Provenance-Based Access Control in OpenStack Cloud IaaS. In Proceedings 8th International Conference on Network and System Security (NSS 2014), Xi'an, China, October 15-17, 2014, 15 pages. Presentation (pptx) (pdf)
    Google Scholar Search 10+
  69. Bo Tang and Ravi Sandhu, Extending OpenStack Access Control with Domain Trust. In Proceedings 8th International Conference on Network and System Security (NSS 2014), Xi'an, China, October 15-17, 2014, 15 pages. Presentation (pptx) (pdf)
    Google Scholar Search 40+
  70. Khalid Bijon, Ram Krishnan and Ravi Sandhu, A Formal Model for Isolation Management in Cloud Infrastructure-as-a-Service. In Proceedings 8th International Conference on Network and System Security (NSS 2014), Xi'an, China, October 15-17, 2014, 12 pages. Presentation (pptx) (pdf)
    Google Scholar Search 10+
  71. Yuan Cheng, Jaehong Park and Ravi Sandhu, Attribute-aware Relationship-based Access Control for Online Social Networks. In Proceedings 28th Annual IFIP WG 11.3 Working Conference on Data and Applications Security and Privacy (DBSec 2014), Vienna, Austria, July 14-16, 2014, 16 pages. Presentation (pptx) (pdf)
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  72. Lianshan Sun, Jaehong Park and Ravi Sandhu, Towards Provenance-Based Access Control with Feasible Overhead. In Proceedings 4th International Conference on Information Science, Electronics and Electrical Engineering (ISEEE), Sapporo, Japan, April 26-28, 2014, 5 pages.
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    73. 2013: 9

  73. Xin Jin, Ram Krishnan and Ravi Sandhu, Reachability Analysis for Role-based Administration of Attributes. In Proceedings ACM-CCS Workshop on Digital Identity Management (DIM), Berlin, Germany, November 8, 2013, 12 pages. Presentation(pdf)
    Google Scholar Search 10+
  74. Khalid Bijon, Ram Krishnan and Ravi Sandhu, A Framework for Risk-Aware Role Based Access Control. In Proceedings 6th IEEE-CNS Symposium on Security Analytics and Automation (SAFECONFIG), Washington, DC, October 16, 2013, 8 pages. Presentation(ppt) (pdf)
    Google Scholar Search 40+
  75. Khalid Bijon, Ram Krishnan and Ravi Sandhu, Towards An Attribute Based Constraints Specification Language. In Proceedings 5th IEEE International Conference on Information Privacy, Security, Risk and Trust (PASSAT), Washington, DC, September 8-14, 2013, 6 pages. Presentation(ppt) (pdf)
    Google Scholar Search 20+
  76. Bo Tang and Ravi Sandhu, Cross-Tenant Trust Models in Cloud Computing. In Proceedings 14th IEEE Conference on Information Reuse and Integration (IRI), San Francisco, California, August 14-16, 2013, pages 129-136. Presentation(pptx) (pdf)
    Google Scholar Search 20+
  77. Dang Nguyen, Jaehong Park and Ravi Sandhu, A Provenance-based Access Control Model for Dynamic Separation of Duties (Winner of Best Student Paper Award). In Proceedings 11th IEEE Conference on Privacy, Security and Trust (PST), Tarragona, Spain, July 10-12, 2013, 10 pages. Presentation(pptx) (pdf)
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  78. Bo Tang, Qi Li and Ravi Sandhu, A Multi-Tenant RBAC Model for Collaborative Cloud Services. In Proceedings 11th IEEE Conference on Privacy, Security and Trust (PST), Tarragona, Spain, July 10-12, 2013, 10 pages. Presentation(pptx) (pdf)
    Google Scholar Search 50+
    Notable non-academic citations: Amazon patent 2015.
  79. Bo Tang, Ravi Sandhu and Qi Li, Multi-Tenancy Authorization Models for Collaborative Cloud Services. In Proceedings 14th IEEE Conference on Collaboration Technologies and Systems (CTS), San Diego, California, May 20-24, 2013, 7 pages. Presentation(pptx) (pdf)
    Google Scholar Search 50+ ???
  80. Yuan Cheng, Jaehong Park and Ravi Sandhu, Preserving User Privacy from Third-party Applications in Online Social Networks. In Proceedings 2nd W3C Workshop on Privacy and Security in Online Social Media (PSOSM), Rio de Janeiro, Brazil, May 14, 2013, 6 pages. Presentation(pptx) (pdf)
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  81. Lianshan Sun, Jaehong Park, and Ravi Sandhu, Engineering Access Control Policies for Provenance-Aware Systems. In Proceedings of the 3rd ACM Conference on Data and Application Security and Privacy (CODASPY), February 18-20, 2013, San Antonio, Texas, pages 285-292. Presentation(pdf)
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    82. 2012: 14

  82. Khalid Bijon, Ram Krishnan and Ravi Sandhu, Risk-Aware RBAC Sessions. In Proceedings 8th International Conference on Information Systems Security (ICISS 2012), December 15-19, 2012, IIT, Guwahati, India, pages 59-74. Presentation(pptx) (pdf)
    Google Scholar Search 30+
  83. Jose Morales, Shouhuai Xu and Ravi Sandhu, Analyzing Malware Detection Efficiency with Multiple Anti-Malware Programs. In Proceedings of the 1st ASE International Conference on Cyber Security (ASE 2012), December 14-16, 2012, Washington, DC, pages 56-66. Presentation(pptx) (pdf)
    Google Scholar Search 10+
  84. Xin Jin, Ravi Sandhu and Ram Krishnan, RABAC: Role-Centric Attribute-Based Access Control. In Proceedings 6th International Conference, on Mathematical Methods, Models, and Architectures for Computer Network Security, MMM-ACNS 2012, St. Petersburg, Russia, October 17-20, 2012, pages 84-96. Published as Springer Lecture Notes in Computer Science Vol. 7531, Computer Network Security (Igor Kotenko and Victor Skormin, editors), 2012. Presentation(pptx) (pdf)
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  85. Khalid Bijon, Tahmina Ahmed, Ravi Sandhu and Ram Krishnan, A Lattice Interpretation of Group-Centric Collaboration with Expedient Insiders. In Proceedings 8th IEEE International Conference on Collaborative Computing: Networking, Applications and Worksharing (CollaborateCom), Pittsburgh, Pennsylvania, October 14-17, 2012, pages 200-209. Cited Technical Report Presentation(ppt) (pdf)
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  86. Xin Jin, Ram Krishnan and Ravi Sandhu, A Role-Based Administration Model for Attributes. In Proceedings of the First ACM International Workshop on Secure and Resilient Architectures and Systems (SRAS '12), Minneapolis, Minnesota, September 19, 2012, pages 7-12. Presentation(pptx) (pdf)
    Google Scholar Search 25+
  87. Yuan Cheng, Dang Nguyen, Khalid Bijon, Ram Krishnan, Jaehong Park and Ravi Sandhu, Towards Provenance and Risk-Awareness in Social Computing. In Proceedings of the First ACM International Workshop on Secure and Resilient Architectures and Systems (SRAS '12), Minneapolis, Minnesota, September 19, 2012, pages 25-30. Presentation(pptx) (pdf)
    Google Scholar Search 1+
  88. Yuan Cheng, Jaehong Park and Ravi Sandhu, Relationship-based Access Control for Online Social Networks: Beyond User-to-User Relationships (Winner of Best Paper Award). In Proceedings 4th IEEE International Conference on Information Privacy, Security, Risk and Trust (PASSAT), Amsterdam, Netherlands, September 3-5, 2012, 10 pages. Presentation(pptx) (pdf)
    Google Scholar Search 75+
  89. Dang Nguyen, Jaehong Park and Ravi Sandhu, Integrated Provenance Data for Access Control in Group-Centric Collaboration. In Proceedings 13th IEEE Conference on Information Reuse and Integration (IRI), Las Vegas, Nevada, August 8-10, 2012, 8 pages. Presentation(pptx) (pdf)
    Google Scholar Search 1+
  90. Jaehong Park, Dang Nguyen and Ravi Sandhu, A Provenance-Based Access Control Model. In Proceedings 10th IEEE Conference on Privacy, Security and Trust (PST), Paris, France, July 16-18, 2012, 8 pages. Presentation(pptx) (pdf)
    Google Scholar Search 90+
  91. Xin Jin, Ram Krishnan and Ravi Sandhu, A Unified Attribute-Based Access Control Model Covering DAC, MAC and RBAC In Proceedings 26th Annual IFIP WG 11.3 Working Conference on Data and Applications Security and Privacy (DBSec 2012), Paris, France, July 11-13, 2012, pages 41-55. Presentation(pptx) (pdf)
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  92. Yuan Cheng, Jaehong Park and Ravi Sandhu, A User-to-User Relationship-based Access Control Model for Online Social Networks In Proceedings 26th Annual IFIP WG 11.3 Working Conference on Data and Applications Security and Privacy (DBSec 2012), Paris, France, July 11-13, 2012, pages 8-24. Presentation(pptx) (pdf)
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  93. Ravi Sandhu, The Authorization Leap from Rights to Attributes: Maturation or Chaos? In Proceedings 17th ACM Symposium on Access Control Models and Technologies (SACMAT), Newark, NJ, June 20-22, 2012, 2 pages. Presentation(pptx) (pdf)
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  94. Dang Nguyen, Jaehong Park and Ravi Sandhu, Dependency Path Patterns as the Foundation of Access Control in Provenance-Aware Systems. In Proceedings 4th USENIX Workshop on the Theory and Practice of Provenance (TaPP 2012), Boston, MA, June 14-15, 2012, 4 pages. Presentation(pptx) (pdf)
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  95. Khalid Bijon, Ravi Sandhu and Ram Krishnan, A Group-Centric Model for Collaboration with Expedient Insiders in Multilevel Systems. In Proceedings IEEE International Symposium on Security in Collaboration Technologies and Systems (SECOTS 2012), Denver, CO, May 24th, 2012, 8 pages. Presentation(pptx) (pdf)
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    96. 2011: 7

  96. Ram Krishnan and Ravi Sandhu, Authorization Policy Specification and Enforcement for Group-Centric Secure Information Sharing. In Proceedings 7th International Conference on Information Systems Security (ICISS 2011), December 15-19, 2011, Jadavpur University, Kolkata, 14 pages. Full version Presentation(pptx) (pdf)
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  97. Jose Morales, Michael Main, Weiliang Luo, Shouhuai Xu and Ravi Sandhu, Building Malware Infection Trees. In Proceedings 6th International Conference on Malicious and Unwanted Software (MALWARE), October 18-19, 2011, Fajardo, Puerto Rico. Presentation(pptx) (pdf)
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  98. Jaehong Park, Dang Nguyen and Ravi Sandhu, On Data Provenance in Group-centric Secure Collaboration. In Proceedings 7th IEEE International Conference on Collaborative Computing: Networking, Applications and Worksharing (CollaborateCom), Orlando, Florida, October 15-18, 2011, 10 pages. Presentation(pptx) (pdf) (pdf as published in conference)
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  99. Ravi Sandhu, Khalid Zaman Bijon, Xin Jin and Ram Krishnan, RT-Based Administrative Models for Community Cyber Security Information Sharing. In Proceedings of the 6th IEEE International Workshop on Trusted Collaboration (TrustCol 2011), Orlando, Florida, October 15, 2011, 6 pages. Presentation(pptx) (pdf)
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  100. Savith Kandala, Ravi Sandhu and Venkata Bhamidipati, An Attribute Based Framework for Risk-Adaptive Access Control Models. In Proceedings 6th International Conference on Availability, Reliability and Security (ARES), Vienna, Austria, August 22-26, 2011, 6 pages. Presentation (ppt) (pdf)
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  101. Jaehong Park, Ravi Sandhu and Yuan Cheng, ACON: Activity-Centric Access Control for Social Computing. In Proceedings 6th International Conference on Availability, Reliability and Security (ARES), Vienna, Austria, August 22-26, 2011, 6 pages. Presentation (pptx) (pdf)
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  102. Ravi Sandhu, The Challenge of Data and Application Security and Privacy (DASPY): Are We Up to It? In Proceedings 1st ACM Conference on Data and Application Security and Privacy (CODASPY), San Antonio, Texas, February 21-23, 2011, 2 pages. (Inaugural Keynote Talk.) Presentation(ppt) (pdf)
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    103. 2010: 9

  103. Jose Morales, Ravi Sandhu and Shouhuai Xu, Evaluating Detection and Treatment Effectiveness of Commercial Anti-malware Programs. In Proceedings 5th International Conference on Malicious and Unwanted Software (MALWARE), October 19-20 2010, Nancy, France, pages 31-38. Presentation(pptx) (pdf)
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  104. Ravi Sandhu, Ram Krishnan and Gregory White, Towards Secure Information Sharing Models for Community Cyber Security. In Proceedings 6th IEEE International Conference on Collaborative Computing: Networking, Applications and Worksharing (CollaborateCom), Chicago, Illinois, October 9-12, 2010, 6 pages. Presentation(ppt) (pdf)
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  105. Jaehong Park, Yuan Cheng and Ravi Sandhu, Towards a Framework for Cyber Social Status Based Trusted Open Collaboration. In Proceedings of the 5th IEEE International Workshop on Trusted Collaboration (TrustCol 2010), Chicago, Illinois, October 9, 2010, 8 pages. Presentation(ppt) (pdf)
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  106. Ravi Sandhu, Raj Boppana, Ram Krishnan, Jeff Reich, Todd Wolff and Josh Zachary, Towards a Discipline of Mission-Aware Cloud Computing. In Proceedings of the 2nd ACM Cloud Computing Security Workshop (CCSW 10), Chicago, Illinois, October 08, 2010, pages 13-17. Presentation(ppt) (pdf)
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  107. Ravi Sandhu, Ram Krishnan, Jianwei Niu and William Winsborough, Group-Centric Models for Secure and Agile Information Sharing. In Proceedings 5th International Conference, on Mathematical Methods, Models, and Architectures for Computer Network Security, MMM-ACNS 2010, St. Petersburg, Russia, September 8-10, 2010, pages 55-69. Published as Springer Lecture Notes in Computer Science Vol. 6258, Computer Network Security (Igor Kotenko and Victor Skormin, editors), 2010. Presentation(ppt) (pdf)
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  108. Jose Morales, Erhan Kartaltepe, Shouhuai Xu and Ravi Sandhu, Symptoms-Based Detection of Bot Processes. In Proceedings 5th International Conference, on Mathematical Methods, Models, and Architectures for Computer Network Security, MMM-ACNS 2010, St. Petersburg, Russia, September 8-10, 2010, pages 229-241. Published as Springer Lecture Notes in Computer Science Vol. 6258, Computer Network Security (Igor Kotenko and Victor Skormin, editors), 2010. Presentation(ppt) (pdf)
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  109. Jose Andre Morales, Areej Al-Bataineh, Shouhuai Xu and Ravi Sandhu, Analyzing and Exploiting Network Behaviors of Malware. In Proceedings 6th International ICST Conference on Security and Privacy in Communication Networks (SecureComm 2010), September 7-9, 2010, Singapore, pages 20-34. Published as Springer Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering Vol. 50, Security and Privacy in Communication Networks (S. Jajodia and J. Zhou, editors), 2010. Presentation(ppt) (pdf)
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  110. Shouhuai Xu, Haifeng Qian, FengyingWang, Zhenxin Zhan, Elisa Bertino and Ravi Sandhu, Trustworthy Information: Concepts and Mechanisms. In Proceedings 11th International Conference on Web-Age Information Management (WAIM 2010), Jiuzhaigou, China, July 15-17, 2010, pages 398-404. Published as Springer Lecture Notes in Computer Science Vol. 6184, Web-Age Information Management (Chen, L., Tang, C., Yang, J. and Gao, Y., editors), 2010. Presentation(pdf)
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  111. Erhan Kartaltepe, Jose Andre Morales, Shouhuai Xu and Ravi Sandhu, Social Network-Based Botnet Command-and-Control: Emerging Threats and Countermeasures. In Proceedings of the 8th International Conference on Applied Cryptography and Network Security (ACNS 2010), Beijing, China, June 22-25, 2010, pages 511-528. Published as Springer Lecture Notes in Computer Science Vol. 6123, Applied Cryptography and Network Security (Jianying Zhou and Moti Yung, editors), 2010. Presentation(ppt) (pdf)
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    112. 2009: 12

  112. Ram Krishnan, Ravi Sandhu, Jianwei Niu and William Winsborough, Towards a Framework for Group-Centric Secure Collaboration. In Proceedings 5th IEEE International Conference on Collaborative Computing: Networking, Applications and Worksharing (CollaborateCom), Crystal City, Virginia, November 11-14, 2009, pages 1-10. Presentation(ppt w/animation) (pdf)
    Google Scholar Search 0.1*
  113. Jose Morales, Areej Al-Bataineh, Shouhuai Xu and Ravi Sandhu, Analyzing DNS Activities of Bot Processes. In Proceedings 4th IEEE International Conference on Malicious and Unwanted Software (Malware 2009), Montreal, Quebec, Canada, October 13-14, 2009, pages 98-103. Presentation(ppt) (pdf)
    Google Scholar Search 0.1*
  114. Ram Krishnan and Ravi Sandhu, A Hybrid Enforcement Model for Group-Centric Secure Information Sharing. In Proceedings IEEE International Conference on Computational Science and Engineering (CSE-09), Vancouver, Canada, August 29-31, 2009, pages 189-194. Full version Presentation(ppt) (pdf)
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  115. Qun Ni, Shouhuai Xu, Elisa Bertino, Ravi Sandhu and Weilei Han, An Access Control Language for a General Provenance Model. In Proceedings 6th VLDB Workshop on Secure Data Management (SDM'09), August 28, 2009, Lyon, France, pages 68-88. Published as Springer Lecture Notes in Computer Science Vol. 5776, SDM 2009 (W. Jonker and M. Petkovi4c, editors), 2009. Presentation(ppt) Presentation(pdf)
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  116. Shouhuai Xu, Ravi Sandhu, and Elisa Bertino, TIUPAM: A Framework for Trustworthiness-Centric Information Sharing. In Proceedings 3rd IFIP WG 11.11 International Conference on Trust Management (IFIPTM), Purdue University, West Lafayette, June 15-19, 2009, pages 164-175. Published as Springer IFIP Advances in Information and Communication Technology Vol. 300, Trust Management III (E. Ferrari, N. Li, E. Bertino and Y. Karabulut, editors), 2009. Presentation (ppt) Presentation (pdf)
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  117. Shouhuai Xu, Qun Ni, Elisa Bertino and Ravi Sandhu, A Characterization of the Problem of Secure Provenance Management. In Proceedings IEEE International Conference on Intelligence and Security Informatics (ISI-2009): Workshop on Assured Information Sharing (WAIS), June 8-11, 2009, Dallas, Texas, pages 310-314. Presentation (ppt) Presentation (pdf)
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  118. Ram Krishnan, Ravi Sandhu, Jianwei Niu and William Winsborough, Foundations for Group-Centric Secure Information Sharing Models. In Proceedings 14th ACM Symposium on Access Control Models and Technologies (SACMAT), Stresa, Italy, June 3-5, 2009, pages 115-124. Presentation(ppt) Presentation(pdf) Techreport(citation [19])
    Google Scholar Search 0.1* +++
  119. Ravi Sandhu, The PEI Framework for Application-Centric Security. In Proceedings 1st IEEE International Workshop on Security and Communication Networks (IWSCN), Trondheim, Norway, May 20-22, 2009. Invited Lecture Presentation
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    Also published as: Ravi Sandhu, The PEI Framework for Application-Centric Security. In Proceedings 5th IEEE International Conference on Collaborative Computing: Networking, Applications and Worksharing (CollaborateCom), Crystal City, Virginia, November 11-14, 2009, pages 1-5. Presentation(ppt) (pdf)
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  120. Ram Krishnan and Ravi Sandhu, Enforcement Architecture and Implementation Model for Group-Centric Information Sharing. In Proceedings 1st IEEE International Workshop on Security and Communication Networks (IWSCN), Trondheim, Norway, May 20-22, 2009. Presentation
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  121. Justin Leonard, Shouhuai Xu, and Ravi Sandhu, A First Step Towards Characterizing Stealthy Botnets. In Proceedings of 4th International Conference on Availability, Reliability and Security (ARES), Fukuoka Institute of Technology, Fukuoka, Japan, March 16-19, 2009, pages 106-113. Presentation
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  122. Justin Leonard, Shouhuai Xu, and Ravi Sandhu, A Framework for Understanding Botnets. In Proceedings of 3rd International Workshop on Advances in Information Security (WAIS at ARES), Fukuoka Institute of Technology, Fukuoka, Japan, March 16-19, 2009, pages 917-922. Presentation
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  123. Ram Krishnan, Ravi Sandhu, Jianwei Niu and William Winsborough, A Conceptual Framework for Group-Centric Secure Information Sharing. In Proceedings 4th ACM Symposium on Information, Computer and Communications Security (AsiaCCS), Sydney, Australia, March 10-12, 2009, pages 384-387. Full version. Presentation
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    124. 2008: 6

  124. Ram Krishnan, Jianwei Niu, Ravi Sandhu and William Winsborough, Stale-Safe Security Properties for Group-Based Secure Information Sharing. In Proceedings 6th ACM-CCS Workshop on Formal Methods in Security Engineering (FMSE), Alexandria, Virginia, October 27, 2008, pages 53-62. Full version. Presentation
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  125. Tim Finin, Anupam Joshi, Lalana Kagal, Jianwei Niu, Ravi Sandhu, William Winsborough and Bhavani Thuraisingham, ROWLBAC: Representing Role Based Access Control in OWL. In Proceedings 13th ACM Symposium on Access Control Models and Technologies (SACMAT), Estes Park, Colorado, June 11-13, 2008, pages 73-82. Presentation
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  126. Xinwen Zhang, Jean-Pierre Seifert and Ravi Sandhu, Security Enforcement Model for Distributed Usage Control In Proceedings 2nd IEEE International Conference on Sensor Networks, Ubiquitous, and Trustworthy Computing (SUTC), Taichung, Taiwan, June 11-13, 2008, pages 10-18. Presentation Keynote Lecture
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  127. Vana Kalogeraki, Dimitrios Gunopulos, Ravi Sandhu and Bhavani Thuraisingham, QoS Aware Dependable Distributed Stream Processing. In Proceedings 11th IEEE Symposium on Object Oriented Real-Time Distributed Computing (ISORC), Orlando, Florida, May 5-7, 2008, pages 69-75. Presentation
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  128. Ravi Sandhu and Venkata Bhamidipati, The ASCAA Principles for Next-Generation Role-Based Access Control . In Proceedings 3rd International Conference on Availability, Reliability and Security (ARES), Barcelona, Spain, March 4-7, 2008, pages xxvii-xxxii. Presentation Keynote Lecture
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  129. Xinwen Zhang, Dongyu Liu, Songqing Chen, Zhao Zhang and Ravi Sandhu, Towards Digital Rights Protection in BitTorrent-like P2P Systems. In Proceedings15th SPIE/ACM Multimedia Computing and Networking (MMCN), San Jose, CA USA, January 30-31, 2008, pages 68180F 1-12. Presentation
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    2007: 7

  130. Manoj Sastry, Ram Krishnan and Ravi Sandhu, A New Modeling Paradigm for Dynamic Authorization in Multi-domain Systems. In Proceedings Fourth International Conference on Mathematical Methods, Models, and Architectures for Computer Network Security, MMM-ACNS, Saint Petersburg, Russia, September 13-15, 2007. Published as Springer-Verlag Communications in Computer and Information Science, Volume 1, pages 153-158. Full version. Presentation
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  131. Shouhuai Xu and Ravi Sandhu, A Scalable and Secure Cryptographic Service. In Proceedings 21st IFIP WG 11.3 Working Conf. on Data and Applications Security, Redondo Beach, CA, July 8-11, 2007, pages 144-160. Published as Springer-Verlag Lecture Notes in Computer Science Vol. 4602, Data and Applications Security XXI (S. Barker and G. Ahn, editors), 2007. Full version. Presentation
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  132. Baoxian Zhao, Ravi Sandhu, Xinwen Zhang and Xiaolin Qin, Towards a Times-Based Usage Control Model. In Proceedings 21st IFIP WG 11.3 Working Conf. on Data and Applications Security, Redondo Beach, CA, July 8-11, 2007, pages 227-242. Published as Springer-Verlag Lecture Notes in Computer Science Vol. 4602, Data and Applications Security XXI (S. Barker and G. Ahn, editors), 2007. Presentation
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  133. Ezedin Barka and Ravi Sandhu, Framework for Agent-Based Role Delegation. In Proceedings IEEE International Conference on Communications (ICC), Glasgow, Scotland, June 24-28, 2007, pages 1361-1367. Presentation
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  134. Min Xu, Xuxian Jiang, Ravi Sandhu and Xinwen Zhang, Towards a VMM-based Usage Control Framework for OS Kernel Integrity Protection. In Proceedings 12th ACM Symposium on Access Control Models and Technologies (SACMAT), June 20-22, 2007, Sophia Antipolis, France, pages 71-80. Presentation
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  135. Ram Krishnan, Ravi Sandhu and Kumar Ranganathan, PEI Models towards Scalable, Usable and High-Assurance Information Sharing. In Proceedings 12th ACM Symposium on Access Control Models and Technologies (SACMAT), June 20-22, 2007, Sophia Antipolis, France, pages 145-150. Full version. Presentation
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  136. Xinwen Zhang, Michael Covington, Songqing Chen and Ravi Sandhu, SecureBus: Towards Application-Transparent Trusted Computing with Mandatory Access Control, AsiaCCS 2007. Presentation
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    137. 2006: 6

  137. Zhixiong Zhang, Xinwen Zhang and Ravi Sandhu, ROBAC: Scalable Role and Organization Based Access Control Models, Proceedings of the 1st IEEE International Workshop on Trusted Collaboration (TrustCol 2006), Atlanta, Georgia, November 17, 2006, 9 pages.
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  138. Xinwen Zhang, Francesco Parisi-Presicce, and Ravi Sandhu, Towards Remote Policy Enforcement for Runtime Protection of Mobile Code Using Trusted Computing, IWSEC 2006. Presentation
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  139. Xinwen Zhang, Masayuki Nakae, Michael Covington and Ravi Sandhu, A Usage-based Authorization Framework for Collaborative Computing Systems, SACMAT 2006. Presentation
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  140. Ravi Sandhu, Kumar Ranganathan and Xinwen Zhang, Secure Information Sharing Enabled by Trusted Computing and PEI Models (Invited Talk), AsiaCCS 2006. Presentation
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  141. Xinwen Zhang, Ravi Sandhu, and Francesco Parisi-Presicce, Safety Analysis of Usage Control Authorization Models, AsiaCCS 2006. Presentation
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  142. Masayuki Nakae, Xinwen Zhang and Ravi Sandhu, A General Design Towards Secure Ad-Hoc Collaboration, AsiaCCS, 2006.
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    143. 2005: 1

  143. Ravi Sandhu and Xinwen Zhang, Peer-to-Peer Access Control Architecture Using Trusted Computing Technology, SACMAT 2005. Presentation
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    144. 2004: 8

  144. Ezedin Barka and Ravi Sandhu, Role-Based Delegation Model/ Hierarchical Roles (RBDM1), ACSAC 2004.
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  145. Mohammad Al-Kahtani and  Ravi Sandhu, Rule-Based RBAC with Negative Authorization, ACSAC 2004.
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  146. Ravi Sandhu, A Perspective on Graphs and Access Control Models (Invited Talk), ICGT 2004. Presentation
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  147. Jaehong Park, Xinwen Zhang,  and Ravi Sandhu, Attribute Mutability in Usage Control, IFIP11.3 2004. Presentation
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  148. Roshan Thomas and Ravi Sandhu, Towards a Multi-dimensional Characterization of Dissemination Control, POLICY, 2004.
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  149. Xinwen Zhang, Jaehong Park, Francesco Parisi-Presicce, Ravi Sandhu, A Logical Specification for Usage Control, SACMAT 2004. Presentation
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  150. S. Xu, W. Nelson Jr. and R. Sandhu, Enhancing Anonymity via Market Competition, Information Assurance and Security -- IEEE ITCC 2004.
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  151. Roshan Thomas and Ravi Sandhu, Models, Protocols, and Architectures for Secure Pervasive Computing: Challenges and Research Directions, IEEE PerSec'04.
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    152. 2003: 5

  152. Ravi Sandhu and Jaehong Park, Usage Control: A Vision for Next Generation Access Control, MMM-ACNS 2003. Presentation
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  153. Xinwen Zhang, Jaehong Park and Ravi Sandhu, Schema based XML Security: RBAC Approach, IFIP11.3 2003.
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  154. Xinwen Zhang, Sejong Oh and Ravi Sandhu, PBDM: A Flexible Delegation Model in RBAC, SACMAT 2003. Presentation
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  155. Mohammad A. Al-Kahtani and Ravi Sandhu, Induced Role Hierarchies with Attribute-Based RBAC, SACMAT 2003. Presentation
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  156. Shouhuai Xu and Ravi Sandhu. Two Efficient and Provably Secure Schemes for Server-Assisted Threshold Signatures, RSA-CT 2003. Presentation
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    157. 2002: 6

  157. Ravi Sandhu, Mihir Bellare, and Ravi Ganesan, Password Enabled PKI: Virtual Smartcards vs. Virtual Soft Tokens, PKIRW 2002. Presentation
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  158. Mohammad A. Al-Kahtani and Ravi Sandhu, A Model for Attribute-Based User-Role Assignment, ACSAC 2002. Presentation
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  159. Sejong Oh, Ravi S. Sandhu, A Model for Role Administration Using Organization Structure, SACMAT 2002. Presentation
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  160. Jaehong Park and Ravi Sandhu, Towards Usage Control Models: Beyond Traditional Access Control, SACMAT 2002. Presentation
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  161. Jaehong Park and Ravi Sandhu, Originator Control in Usage Control, POLICY 2002.
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  162. Shouhuai Xu and Ravi Sandhu, Authenticated Multicast Immune to Denial-of-Service Attack, SAC 2002.
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    163. 2001: 4

  163. Pete Epstein and Ravi Sandhu, Engineering of Role-Permission Assignments, ACSAC 2001.
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  164. Joon Park, Gail-Joon Ahn and Ravi Sandhu, Role-based Access Control on the Web Using LDAP, IFIP11.3 2001.
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  165. Savith Kandala and Ravi Sandhu, Secure Role-Based Workflow Models, IFIP11.3 2001.
    Google Scholar Search 0.5*
  166. Ravi Sandhu, Future Directions in Role-Based Access Control Models (Keynote Lecture), MMM-ACNS 2001. Presentation
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    167. 2000: 8

  167. Ezedin Barka and Ravi Sandhu, Framework for Role-Based Delegation Models, ACSAC 2000. Presentation
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  168. Jaehong Park, Ravi Sandhu and James Schifalacqua, Security Architectures for Controlled Digital Information Dissemination, ACSAC 2000. Presentation
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  169. Joon S. Park and Ravi Sandhu, Binding Identities and Attributes Using Digitally Signed Certificates, ACSAC 2000.
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  170. Ezedin Barka and Ravi Sandhu, A Role-Based Delegation Model and Some Extensions, NISSC 2000. Presentation
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  171. Venkata Bhamidipati and Ravi Sandhu, Push Architectures for User-Role Assignment, NISSC 2000.
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  172. Ravi Sandhu, Engineering Authority and Trust in Cyberspace: The OM-AM and RBAC Way, ACM RBAC 2000. Presentation
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  173. Ravi Sandhu, David Ferraiolo and Richard Kuhn, The NIST Model for Role-Based Access Control: Towards A Unified Standard, ACM RBAC 2000.
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  174. Gail-Joon Ahn, Myong Kang, Joon Park and Ravi Sandhu, Injecting RBAC to Secure a Web-Based Workflow System, ACM RBAC 2000. Presentation
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    175. 1999: 8

  175. Gail-Joon Ahn and Ravi Sandhu, The RSL99 Language for Role-Based Separation of Duty Constraints, ACM RBAC 1999.
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  176. Pete Epstein and Ravi Sandhu, Towards a UML Based Approach to Role Engineering, ACM RBAC 1999.
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  177. Joon S. Park and Ravi Sandhu, RBAC on the Web by Smart Certificates, ACM RBAC 1999.
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  178. Ravi Sandhu and Qamar Munawer, Simulation of the Augmented Typed Access Matrix Model (ATAM) Using Roles, INFOSECU 1999.
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  179. Ravi Sandhu and Qamar Munawer, The ARBAC99 Model for Administration of Roles, ACSAC 1999. Presentation
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  180. Joon S. Park and Ravi Sandhu, Smart Certificates: Extending X.509 for Secure Attribute Service on the Web, NISSC 1999. Presentation
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  181. Joon Park, Ravi Sandhu, and SreeLatha Ghanta, RBAC on the Web by Secure Cookies, IFIP11.3 1999.
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  182. Savith Kandala and Ravi Sandhu, Extending the BFA Workflow Authorization Model to Express Weighted Voting, IFIP11.3 1999.
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    183. 1998: 10

  183. Philip Hyland and Ravi Sandhu, Concentric Supervision of Security Applications: A New Security Management Paradigm, ACSAC 1998.
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  184. Ravi Sandhu and Gail-Joon Ahn, Group Hierarchies with Decentralized User Assignment in Windows NT, IASTED-CSE 1998.
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  185. Ravi Sandhu and Qamar Munawer, The RRA97 Model for Role-Based Administration of Role Hierarchies, ACSAC 1998.
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  186. Ravi Sandhu and Qamar Munawer, How to do Discretionary Access Control Using Roles, ACM RBAC 1998. Presentation
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  187. Ravi Sandhu, Role Activation Hierarchies, ACM RBAC 1998. Presentation
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  188. Ravi Sandhu and Venkata Bhamidipati, An Oracle Implementation of the PRA97 Model for Permission-Role Assignment, ACM RBAC 1998. Presentation
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  189. Ravi Sandhu and Joon S. Park, Decentralized User-Role Assignment for Web-based Intranets, ACM RBAC 1998.
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  190. Philip Hyland and Ravi Sandhu, Management of Network Security Applications, NISSC 1998.
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  191. Ravi Sandhu and Gail-Joon Ahn, Decentralized Group Hierarchies in UNIX: An Experiment and Lessons Learned, NISSC 1998.
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  192. Chandramouli Ramaswamy and Ravi Sandhu, Role-Based Access Control Features in Commercial Database Management Systems (Winner of Best Paper Award), NISSC 1998.
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    193. 1997: 4

  193. Tarik Himdi and Ravi Sandhu, Lattice Based Models for Controlled Sharing of Confidential Information in The Saudi Hajj System, ACSAC 1997.
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  194. Ravi Sandhu, Venkata Bhamidipati, Edward Coyne, Srinivas Ganta and Charles Youman, The ARBAC97 Model for Role-Based Administration of Roles: Preliminary Description and Outline, ACM RBAC 1997. Presentation
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  195. Ravi Sandhu and Venkata Bhamidipati, The URA97 Model for Role-Based User-Role Assignment, IFIP11.3 1997. Presentation
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  196. Roshan Thomas and Ravi Sandhu, Task-based Authorization Controls (TBAC): A Family of Models for Active and Enterprise-oriented Authorization Management, IFIP11.3 1997.
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    197. 1996: 2

  197. Ravi Sandhu, Role Hierarchies and Constraints for Lattice-Based Access Controls, ESORICS 1996. Presentation
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  198. Ravi Sandhu, Access Control: The Neglected Frontier (Keynote Lecture), ACISP 1996. Presentation
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    199. 1995: 6

  199. Ravi Sandhu, Issues in RBAC, ACM RBAC 1995.
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  200. Ravi Sandhu, Roles Versus Groups, ACM RBAC 1995.
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  201. Ravi Sandhu, Rationale for the RBAC96 Family of Access Control Models, ACM RBAC 1995.
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  202. Fang Chen and Ravi Sandhu, Constraints for Role-Based Access Control, ACM RBAC 1995.
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  203. Jeremy Epstein and Ravi Sandhu, NetWare 4 as an Example of Role-Based Access Control, ACM RBAC 1995.
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  204. Fang Chen and Ravi Sandhu, The Semantics and Expressive Power of the MLR Data Model, OAKLAND 1995.
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    205. 1994: 7

  205. Roshan Thomas and Ravi Sandhu, Conceptual Foundations for a Model of Task-based Authorizations, CSFW 1994.
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  206. Ravi Sandhu, Edward Coyne, Hal Feinstein and Charles Youman, Role-Based Access Control: A Multi-Dimensional View, ACSAC 1994. Presentation
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  207. Ravi Sandhu and Srinivas Ganta, On the Expressive Power of the Unary Transformation Model, ESORICS 1994. Presentation
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  208. Roshan Thomas and Ravi Sandhu, Supporting Object-based High-assurance Write-up in Multilevel databases for the Replicted Architecture, ESORICS 1994.
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  209. Ravi Sandhu and Hal Feinstein, A Three Tier Architecture for Role-Based Access Control, NCSC 1994. Presentation
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  210. Paul Ammann and Ravi Sandhu, One-Representative Safety Analysis in the Non-Monotonic Transform Model, CSFW 1994.
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  211. Ravi Sandhu and Srinivas Ganta, On the Minimality of Testing for Rights in Transformation Models, OAKLAND 1994.
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    212. 1993: 9

  212. Roshan Thomas and Ravi Sandhu, Towards a Task-Based Paradigm for Flexible and Adaptable Access Control in Distributed Applications, NSP 1993.
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  213. Roshan Thomas and Ravi Sandhu, Concurrency, Synchronization, and Scheduling to Support High-assurance Write-up in Multilevel Object-based Computing, OOPSLA Workshop 1993.
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  214. Ravi Sandhu and Srinivas Ganta, Expressive Power of the Single-Object Typed Access Matrix Model, ACSAC 1993.
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  215. Ravi Sandhu and Sushil Jajodia, Referential Integrity in Multilevel Secure Databases, NCSC 1993.
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  216. Roshan Thomas and Ravi Sandhu, Discretionary Access Control in Object-Oriented Databases: Issues and Research Directions, NCSC 1993.
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  217. Roshan Thomas and Ravi Sandhu, Task Based Authorization: A Paradigm for Flexible and Adaptable Access Control in Distributed Applications, NCSC 1993.
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  218. Ravi Sandhu, On Five Definitions of Data Integrity, IFIP11.3 1993. Presentation
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  219. Roshan Thomas and Ravi Sandhu, Towards a Unified Framework and Theory for Reasoning about Security and Correctness of Multilevel Transactions, IFIP11.3 1993.
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  220. Ravi Sandhu and Srinivas Ganta, On Testing for Absence of Rights in Access Control Models, CSFW 1993.
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    221. 1992: 8

  221. Paul Ammann and Ravi Sandhu, Implementing Transaction Control Expressions by Checking for Absence of Access Rights, ACSAC 1992.
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  222. Ravi Sandhu and Sushil Jajodia, Polyinstantiation for Cover Stories, ESORICS 1992.
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  223. Ravi Sandhu, A Lattice Interpretation of the Chinese Wall Policy, NCSC 1992.
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  224. Ravi Sandhu and Gurpreet Suri, Implementation Considerations for the Typed Access Matrix Model in a Distributed Environment (Winner of Outstanding Paper Award), NCSC 1992.
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  225. Ravi Sandhu, The Typed Access Matrix Model, OAKLAND 1992.
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  226. Ravi Sandhu and Gurpreet Suri, Non-Monotonic Transformations of Access Rights, OAKLAND 1992.
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  227. Roshan Thomas and Ravi Sandhu, Implementing the Message Filter Object-oriented Security Model without Trusted Subjects, IFIP11.3 1992.
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  228. Paul Ammann, Richard Lipton and Ravi Sandhu, The Expressive Power of Multi-Parent Creation in Monotonic Access Control Models, CSFW 1992.
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    229. 1991: 10

  229. John McDermott, Sushil Jajodia and Ravi Sandhu, A Single-Level Scheduler for the Replicated Architecture for Multilevel Secure Databases, ACSAC 1991.
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  230. Paul Ammann, Ravi Sandhu and Gurpreet Suri, A Distributed Implementation of the Extended Schematic Protection Model, ACSAC 1991.
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  231. Ravi Sandhu, Roshan Thomas and Sushil Jajodia, Supporting Timing Channel Free Computations in Multilevel Secure Object-Oriented Databases, IFIP11.3 1991.
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  232. Ravi Sandhu and Sushil Jajodia, Honest Databases That Can Keep Secrets, NCSC 1991.
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  233. Ravi Sandhu and Gurpreet Suri, A Distributed Implementation of the Transform Model, NCSC 1991.
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  234. Ravi Sandhu, Roshan Thomas and Sushil Jajodia, A Secure Kernelized Architecture for Multilevel Object-Oriented Databases, CSFW 1991.
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  235. Edgar Sibley, James Michael and Ravi Sandhu, A Case Study of Security Policy for Manual and Automated Systems, COMPASS 1991.
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  236. Sushil Jajodia and Ravi Sandhu, Toward a Multilevel Secure Relational Data Model, SIGMOD 1991.
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  237. Paul Ammann and Ravi Sandhu, Safety Analysis for the Extended Schematic Protection Model, OAKLAND 1991.
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  238. Sushil Jajodia and Ravi Sandhu, A Novel Decomposition of Multilevel Relations into Single-Level Relations, OAKLAND 1991.
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    239. 1990: 8

  239. Paul Ammann and Ravi Sandhu, Extending the Creation Operation in the Schematic Protection Model, ACSAC 1990.
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  240. Sushil Jajodia, Ravi Sandhu and Edgar Sibley, Update Semantics for Multilevel Relations, ACSAC 1990.
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  241. Ravi Sandhu and Sushil Jajodia, Integrity Mechanisms in Database Management Systems, NCSC 1990.
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  242. Ravi Sandhu and Sushil Jajodia, Polyinstantiation Integrity in Multilevel Relations, OAKLAND 1990.
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  243. Ravi Sandhu, Separation of Duties in Computerized Information Systems, IFIP11.3 1990.
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  244. Sushil Jajodia and Ravi Sandhu, Polyinstantiation Integrity in Multilevel Relations Revisited,, IFIP11.3 1990.
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  245. Ravi Sandhu, Sushil Jajodia and Teresa Lunt, A New Polyinstantiation Integrity Constraint for Multilevel Relations, CSFW 1990.
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  246. Sushil Jajodia and Ravi Sandhu, A Formal Framework for Single Level Decomposition of Multilevel Relations, CSFW 1990.
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    247. 1989: 3

  247. Ravi Sandhu, Mandatory Controls for Database Integrity, IFIP11.3 1989.
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  248. Ravi Sandhu, Transformation of Access Rights, OAKLAND 1989.
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  249. Ravi Sandhu, Terminology, Criteria and System Architectures for Data Integrity, IWDI 1989.
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    250. 1988: 1

  250. Ravi Sandhu, Transaction Control Expressions for Separation of Duties, ACSAC 1988.
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    251. 1987: 1

  251. Ravi Sandhu, On Some Cryptographic Solutions for Access Control in a Tree Hierarchy, ACM-IEEE 1987.
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    252. 1986: 1

  252. Ravi Sandhu and Micheal Share, Some Owner-Based Schemes with Dynamic Groups in the Schematic Protection Model, OAKLAND 1986.
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    253. 1985: 1

  253. Ravi Sandhu, Analysis of Acyclic Attenuating Systems for the SSR Protection Model, OAKLAND 1985.
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    254. 1984: 1

  254. Ravi Sandhu, The SSR Model for Specification of Authorization Policies: A Case Study in Project Control, COMPSAC 1984.
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